Data Sheet, Rev. 3.1, Aug TLE6251DS. High Speed CAN-Transceiver with Bus wake-up. Automotive Power

Transcription

1 Daa Shee, Rev. 3.1, Aug TLE6251DS High Speed CAN-Transceiver wih Bus wake-up Auomoive Power

2 Ediion Published by Infineon Technologies AG Munich, Germany 2005 Infineon Technologies AG All Righs Reserved. Legal Disclaimer The informaion given in his documen shall in no even be regarded as a guaranee of condiions or characerisics. Wih respec o any examples or hins given herein, any ypical values saed herein and/or any informaion regarding he applicaion of he device, Infineon Technologies hereby disclaims any and all warranies and liabiliies of any kind, including wihou limiaion, warranies of non-infringemen of inellecual propery righs of any hird pary. Informaion For furher informaion on echnology, delivery erms and condiions and prices, please conac he neares Infineon Technologies Office ( Warnings Due o echnical requiremens, componens may conain dangerous subsances. For informaion on he ypes in quesion, please conac he neares Infineon Technologies Office. Infineon Technologies componens may be used in life-suppor devices or sysems only wih he express wrien approval of Infineon Technologies, if a failure of such componens can reasonably be expeced o cause he failure of ha life-suppor device or sysem or o affec he safey or effeciveness of ha device or sysem. Life suppor devices or sysems are inended o be implaned in he human body or o suppor and/or mainain and susain and/or proec human life. If hey fail, i is reasonable o assume ha he healh of he user or oher persons may be endangered.

3 High Speed CAN-Transceiver wih Bus wake-up TLE6251DS Feaures CAN daa ransmission rae up o 1 Mbaud Compaible o ISO/DIS Suppors 12 V and 24 V auomoive applicaions Low power mode wih remoe wake-up via CAN bus Wake signaling by RxD change No BUS load in sand-by mode Wide common mode range for elecromagneic immuniy (EMI) Digial inpus compaible o 3.3 and 5 V logic devices CAN shor circui proof o ground, baery and Spli erminaion o sabilize he recessive level TxD ime-ou funcion Overemperaure proecion Proeced agains auomoive ransiens Green Produc (RoHS complian) AEC Qualified Descripion The CAN-ransceiver TLE6251DS is a monolihic inegraed circui in a PG-DSO-8 package for high speed differenial mode daa ransmission (up o 1 Mbaud) and recepion in auomoive and indusrial applicaions. I works as an inerface beween he CAN proocol conroller and he physical bus lines compaible o ISO/DIS As a successor o he firs generaion of HS CAN (TLE6250), he TLE6251DS is designed o provide an excellen passive behavior when he ransceiver is swiched off (mixed neworks, erminal 15/30 applicaions) and a remoe wake-up capabiliy via CAN bus in low power mode. This suppors neworks wih parially un-powered nodes. The TLE6251DS has wo operaion modes, he normal and he sand-by mode. These modes can be chosen by he STB pin. If he TLE6251DS is in sand-by mode and a message on he bus is Type TLE6251DS Package PG-DSO-8 Daa Shee 3 Rev. 3.1,

4 deeced, he TLE6251DS changes he level a he RxD pin corresponding o he bus signal (wake-up flag). The TLE6251DS is also designed o wihsand he severe condiions of auomoive applicaions and o suppor 12 V and 24 V applicaions. The IC is based on he Smar Power Technology SPT which allows bipolar and CMOS conrol circuiry in accordance wih DMOS power devices exising on he same monolihic circui. Pin Configuraion and Definiions TLE6251DS TxD 1 8 STB 2 7 CANH 3 6 CANL RxD 4 5 SPLIT AEP03389.VSD Figure 1 Pin Configuraion (op view) Table 1 Pin Definiions and Funcions Pin No. Symbol Funcion 1 TxD CAN ransmi daa inpu; 20 kω pull-up, LOW in dominan sae 2 Ground 3 5 V supply inpu; block o wih 100 nf ceramic capacior 4 RxD CAN receive daa oupu; LOW in dominan sae 5 SPLIT Spli erminaion oupu; o suppor he recessive volage level of he bus lines 6 CANL Low line inpu; LOW in dominan sae 7 CANH High line oupu; HIGH in dominan sae 8 STB Mode conrol inpu; inernal pull-up, see Figure 3 Daa Shee 4 Rev. 3.1,

5 Funcional Block Diagram TLE6251DS 3 Wake-Up Logic Mode Conrol Logic 8 STB CANH CANL 7 6 Oupu Sage Driver Temp.- Proecion + imeou 1 TxD = Receiver MUX 4 RxD SPLIT 5 2 AEB03388.VSD Figure 2 Funcional Block Diagram Daa Shee 5 Rev. 3.1,

6 Applicaion Informaion The TLE6251DS has wo operaion modes, he normal and he sandby mode. These modes can be conrolled wih he STB pin (see Figure 3, Table 2). The STB pin has an implemened pullup, so if here is no signal applied o STB or STB = HIGH, he sandby mode is acivaed. To ransfer he TLE6251DS ino he normal mode, STB has o be swiched o LOW. Normal STB = 0 Sand-By STB = 1 AEA03391.VSD Figure 3 Mode Sae Diagram Table 2 Truh Table Mode STB Even RxD BUS Terminaion Normal low bus dominan low /2 bus recessive high Sand by high wake-up via CAN bus deeced low/high 1) no wake-up deeced high 1) Signal a RxD changes corresponding o he bus signal during sand by mode. See Figure 6 Normal Mode This mode is designed for he normal daa ransmission/recepion wihin he HS-CAN nework. Daa Shee 6 Rev. 3.1,

7 Transmission The signal from he µc is applied o he TxD inpu of he TLE6251DS. Now he bus driver swiches he CANH/L oupu sages o ransfer his inpu signal o he CAN bus lines. TxD Time-ou Feaure If he TxD signal is dominan for a ime > TxD he TxD ime-ou funcion deacivaes he ransmission of he signal a he bus. This is realized o preven he bus from being blocked permanenly dominan due o an error. The ransmission is released again, afer a rising edge a TxD has been deeced. Reduced Elecromagneic Emission The bus driver has an implemened conrol o reduce he elecromagneic emission (EME). This is achieved by conrolling he symmery of he slope, resp. of CANH and CANL. Overemperaure The driver sages are proeced agains overemperaure. Exceeding he shudown emperaure resuls in deacivaion of he driving sages a CANH/L. To avoid a bi failure afer cooling down, he signals can be ransmied again only afer a dominan o recessive edge a TxD. Figure 4 shows he way how he ransmission sage is deacivaed and acivaed again. Firs an over emperaure condiion causes he ransmission sage o deacivae. Afer he over emperaure condiion is no longer presen, he ransmission is only possible afer he TxD signal has changed o recessive level. Daa Shee 7 Rev. 3.1,

8 Failure Overemp Overemperaure TxD BUS V DIFF (CANH-CANL) R D R AET03394.VSD Figure 4 Release of he Transmission afer Overemperaure Recepion The analog CAN bus signals are convered ino a digial signal a RxD via he differenial inpu receiver. The RxD signal is swiched o RxD oupu pin via he muliplexer (MUX), see Figure 2. In normal mode he spli pin is used o sabilize he recessive common mode signal. Sandby Mode The sandby mode is designed o swich he TLE6251DS ino a low power mode wih minimum curren consumpion. The driving sages and he receiver are deacivaed. Only he relevan circuiry o guaranee a correc handling of he CAN bus wake-up is sill acive. This wake-up receiver is also designed o show an excellen immuniy agains elecromagneic noise (EMI). Change ino Sandby Mode during CAN Bus Failure I is possible o change from normal mode ino he sandby mode if he bus is dominan due o a bus failure wihou seing he RxD wake flag o LOW. The advanage is, ha he TLE6251DS can be kep in he sandby mode even if a bus failure occurs. Figure 5 shows his mechanism in deail. During a bus nework failure, he bus migh be dominan. Normal communicaion is no possible unil he failure is removed. To reduce he curren consumpion, i makes sense o swich over o sandby mode. This is possible wih he Daa Shee 8 Rev. 3.1,

9 TLE6251DS. If he dominan signal swiches back o recessive level, e.g. failure removed, a wake-up via CAN bus (recessive o dominan signal deeced) is possible. BUS V DIFF (CANH-CANL) D R D STB (Mode) Normal Mode (STB = LOW) Sandby Mode (STB = HIGH) RxD WU1 WU2 AET03393.VSD Figure 5 Go-To Sandby Mode during Bus Dominan Condiion Wake-up via CAN Message During sandby mode, a dominan CAN message on he bus longer han he filering ime > WU1, leads o he acivaion of he wake-up. The wake-up during sandby mode is signaled wih he RxD oupu pin. A dominan signal longer > WU1 on he CAN bus swiches he RxD level o LOW, wih a following recessive signal on he CAN bus longer > WU2 he RxD level is swiched o high, see Figure 6. The µc is able o deec his change a RxD and swich he ransceiver ino he normal mode. Daa Shee 9 Rev. 3.1,

10 V CAN /2 CANH CANL BUS V DIFF (CANH-CANL) Recessive o Dominan V DIFF(d) V DIFF(d) V DIFF(d) V DIFF(d) V RxD WU1 WU2 0.8 x 0.2 x AET03395_TO1.VSD Figure 6 Wake-up behavior Spli Circui The spli circuiry is acivaed during normal mode and deacivaed (SPLIT pin floaing) during sandby mode. The SPLIT pin is used o sabilize he recessive common mode signal in normal mode. This is realized wih a sabilized volage of 0.5 a SPLIT. A correc applicaion of he SPLIT pin is shown in Figure 7. The spli erminaion for he lef and righ node is realized wih wo 60 Ω resisances and one 10 nf capacior. The cener node in his example is a sub node and he recommended value for he spli resisances is 1.5 kω. Daa Shee 10 Rev. 3.1,

11 CANH CANH TLE6251G/DS 60 Ω 60 Ω TLE6251G/DS SPLIT 10 nf Spli Terminaion 60 Ω CAN Bus Spli Terminaion 60 Ω 10 nf SPLIT CANL CANL 10 nf Spli Terminaion a Sub 1.5 kω 1.5 kω CANH SPLIT CANL TLE6251G/DS AEA VSD Figure 7 Applicaion of he SPLIT Pin for Normal Nodes and one Sub Node Oher Feaures Fail Safe If he device is supplied bu here is no signal a he digial inpus, he TxD and STB have an inernal pull-up pah, o preven he ransceiver o swich ino he normal mode or send a dominan signal on he bus. Un-supplied Node The CANH/CANL pins remain high ohmic, if he ransceiver is un-supplied. Daa Shee 11 Rev. 3.1,

12 Table 3 Absolue Maximum Raings Parameer Symbol Limi Values Uni Remarks Min. Max. Volages Supply volage V CAN bus volage (CANH, CANL) V CANH/L V CAN bus differenial volage CANH, CANL, SPLIT V CAN diff V CANH - CANL < 40 V CANH - SPLIT < 40 V CANL - SPLIT < 40 V Inpu volage a SPLIT V SPLIT V Logic volages a STB, TxD, V I -0.3 V 0 V < < 5.5 V RxD Elecrosaic discharge volage a CANH, CANL, SPLIT vs. Elecrosaic discharge volage Temperaures V ESD -6 6 kv human body model (100 pf via 1.5 kω) V ESD -2 2 kv human body model (100 pf via 1.5 kω) Sorage emperaure T j C Noe: Maximum raings are absolue raings; exceeding any one of hese values may cause irreversible damage o he inegraed circui. Daa Shee 12 Rev. 3.1,

13 Table 4 Operaing Range Parameer Symbol Limi Values Uni Remarks Min. Max. Supply volage V Juncion emperaure T j C Thermal Resisances Juncion ambien R hj-a 185 K/W 1) Thermal Shudown (juncion emperaure) Thermal shudown emperaure T jsd C Thermal shudown hys. T 10 K 1) Calculaion of he juncion emperaure T j = T amb + P R hj-a Daa Shee 13 Rev. 3.1,

14 Table 5 Elecrical Characerisics 4.75 V < < 5.25 V; R L = 60 Ω; -40 C < T j < 150 C; all volages wih respec o ground; posiive curren flowing ino pin; unless oherwise specified. Parameer Symbol Limi Values Uni Remarks Min. Typ. Max. Curren Consumpion Curren consumpion I CC 6 10 ma recessive sae; V TxD = Curren consumpion I CC ma dominan sae; V TxD = 0 V Curren consumpion I CC,sb µa sand-by mode; TxD = high Receiver Oupu RxD HIGH level oupu curren I RD,H -4-2 ma V RD = µa sand-by mode LOW level oupu curren I RD,L 2 4 ma V RD = 0.2 Shor circui curren I SC,RxD ma Transmission Inpu TxD HIGH level inpu volage V TD,H 2.0 V recessive sae hreshold LOW level inpu volage V TD,L 0.8 V dominan sae hreshold TxD pull-up resisance R TD kω TxD inpu hyseresis V TD hys 200 mv Sand By Inpu (pin STB) HIGH level inpu volage V STB,H 2.0 V normal mode hreshold LOW level inpu volage V STB,L 0.8 V receive-only mode hreshold STB pull-up resisance R STB kω STB inpu hyseresis V STB hys 200 mv Daa Shee 14 Rev. 3.1,

15 Table 5 Elecrical Characerisics (con d) V normal mode; 4.75 V < < 5.25 V; R L = 60 Ω; -40 C < T j < 150 C; all volages wih respec o ground; posiive curren flowing ino pin; unless oherwise specified. Parameer Symbol Limi Values Uni Remarks Min. Typ. Max. Spli Terminaion Oupu (pin SPLIT) Spli oupu volage V SPLIT µa < I SPLIT < 500 µa V normal mode; V SPLIT 0.45 no Load Leakage curren I SPLIT µa sandby mode; -22 V < V SPLIT < 35 V SPLIT oupu resisance R SPLIT 600 Ω Bus Receiver Differenial receiver V diff,rdn V recessive o dominan hreshold volage, normal mode V diff,drn V dominan o recessive Differenial receiver V diff,rdlp V recessive o dominan hreshold, low power mode V diff,drlp V dominan o recessive Common Mode Range CMR V = 5 V Differenial receiver V diff,hys 200 mv hyseresis CANH, CANL inpu R i kω recessive sae resisance Differenial inpu resisance R diff kω recessive sae Bus Transmier CANL/CANH recessive oupu volage CANH, CANL recessive oupu volage difference CANL dominan oupu volage CANH dominan oupu volage V CANL/H V V TxD = ; no load V diff mv V TxD = ; no load V CANL V V TxD = 0 V; = 5 V V CANH V V TxD = 0 V; = 5 V Daa Shee 15 Rev. 3.1,

16 Table 5 Elecrical Characerisics (con d) 4.75 V < < 5.25 V; R L = 60 Ω; -40 C < T j < 150 C; all volages wih respec o ground; posiive curren flowing ino pin; unless oherwise specified. Parameer Symbol Limi Values Uni Remarks Min. Typ. Max. CANH, CANL dominan oupu volage difference V diff = V CANH - V CANL V diff V V TxD = 0 V; = 5 V CANL shor circui curren I CANLsc ma V CANLshor = 18 V CANH shor circui curren I CANHsc ma V CANHshor = 0 V Leakage curren I CANH,L,lk µa = 0 V; 0 V < V CANH,L < 5 V Dynamic CAN-Transceiver Characerisics Propagaion delay TxD-o-RxD LOW (recessive o dominan) Propagaion delay TxD-o-RxD HIGH (dominan o recessive) Propagaion delay TxD LOW o bus dominan Propagaion delay TxD HIGH o bus recessive Propagaion delay bus dominan o RxD LOW Propagaion delay bus recessive o RxD HIGH Min. dominan ime for bus wake-up signal (RxD high o low) d(l),tr ns C L = 47 pf; R L = 60 Ω; = 5 V; C RxD = 15 pf d(h),tr ns C L = 47 pf; R L = 60 Ω; = 5 V; C RxD = 15 pf d(l),t ns C L = 47 pf; R L = 60 Ω; = 5 V d(h),t ns C L = 47 pf; R L = 60 Ω; = 5 V d(l),r ns C L = 47 pf; R L = 60 Ω; = 5 V; C RxD = 15 pf d(h),r ns C L = 47 pf; R L = 60 Ω; = 5 V; C RxD = 15 pf WU µs WU1 = d(l),r + WU see Figure 6 Daa Shee 16 Rev. 3.1,

17 Table 5 Elecrical Characerisics (con d) 4.75 V < < 5.25 V; R L = 60 Ω; -40 C < T j < 150 C; all volages wih respec o ground; posiive curren flowing ino pin; unless oherwise specified. Parameer Symbol Limi Values Uni Remarks Min. recessive ime for bus wake-up signal (RxD low o high) TxD permanen dominan disable ime Min. Typ. Max. WU µs WU2 = d(h),r + WU see Figure 6 TxD ms Daa Shee 17 Rev. 3.1,

18 Diagrams 7 CANH STB TxD SPLIT pf 60 Ω 4 RxD 15 pf 6 CANL V 100 nf AEA03392.VSD Figure 8 Tes Circuis for Dynamic Characerisics Daa Shee 18 Rev. 3.1,

19 V TxD V µc V DIFF d(l), T d(h), T V DIFF(d) V DIFF(r) V RxD d(l), R d(h), R V µc 0.8 µv C 0.2V µ C d(l), TR d(h), TR AET02926 Figure 9 Timing Diagrams for Dynamic Characerisics Daa Shee 19 Rev. 3.1,

20 Applicaion 4.7 nf 1) V S 60 Ω V Ba 60 Ω CAN Bus 51 µh 10 kω 9 1) 100 nf TLE6251G WK CANH CANL SPLIT V S INH 2 EN NSTB NERR RxD TxD V µc nf 100 nf 100 nf µp wih On Chip CAN Module e.g. C164C C167 C INH V Q µf 100 nf e.g. TLE 4476 (3.3/5 V) or TLE 4471 TLE 4276 V I TLE 4271 V Q2 5 V + 22 µf + 22 µf ECU 51 µh 1) TLE6251DS CANH STB 8 CANL RxD 4 SPLIT TxD 1 3 µp wih On Chip CAN Module e.g. C164C C167 C nf 100 nf e. g. TLE Ω 60 Ω 4.7 nf 1) 22 + µf 100 nf V I V Q + 5 V 22 µf ECU 1) Opional, according o he car manufacurer requiremens AEA VSD Figure 10 Applicaion Circui Daa Shee 20 Rev. 3.1,

21 Package Oulines ) ±0.07 (1.45) 1.75 MAX M A B 8x B 0.35 x 45 1) C 6 ± ± MAX. 0.2 M C 8x ) A Index Marking 1) Does no include plasic or meal prorusion of 0.15 max. per side 2) Lead widh can be 0.61 max. in dambar area GPS01181 Figure 11 PG-DSO-8 (PG-DSO-8-16 Plasic Dual Small Ouline) Green Produc (RoHS complian) To mee he world-wide cusomer requiremens for environmenally friendly producs and o be complian wih governmen regulaions he device is available as a green produc. Green producs are RoHS-Complian (i.e Pb-free finish on leads and suiable for Pb-free soldering according o IPC/JEDEC J-STD-020). You can find all of our packages, sors of packing and ohers in our Infineon Inerne Page Producs : hp:// SMD = Surface Mouned Device Dimensions in mm Daa Shee 21 Rev. 3.1,

22 Revision Hisory Version Dae Changes Rev RoHS-complian version of he TLE6251DS All pages: Infineon logo updaed Page 3: added AEC qualified and RoHS logo, Green Produc (RoHS complian) and AEC qualified saemen added o feaure lis, package name changed o RoHS complian versions, package picure updaed, ordering code removed Page 21: Change package drawing o GPS01181 Package name changed o RoHS complian versions, Green Produc descripion added added Revision Hisory updaed Legal Disclaimer Daa Shee 22 Rev. 3.1,